Viezzi, Devid
Current rating: 1564
| Grand Prix Prague 2014 (modern) | starting rating: 1494 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 91 | Cordeschi, Nicola (1502) | Draw 1-1 | 01494 |
| 2modern | 319 | Balcar, Jiri (1468) | Won 2-1 | +181512 |
| 3modern | 347 | Posavi, Andrej (1473) | Won 2-0 | +171529 |
| 4modern | 198 | Schleif, Filip (1497) | Won 2-0 | +171546 |
| 5modern | 101 | Rondine, Fabio (1536) | Won 2-1 | +181564 |
| 6modern | 49 | Tetzlaff, Leonard (1614) | Won 2-0 | +191583 |
| 7modern | 24 | Hrbacek, Jakub (1585) | Lost 0-2 | -181565 |
| 8modern | 79 | Orlowski, Kamil (1509) | Lost 0-2 | -191546 |
| 9modern | 157 | Gorzelanczyk, Piotr (1559) | Won 2-0 | +181564 |
| top | average opponent: 1527record: 6-2-1 | new rating: 1564 | ||
| Grand Prix Verona 2013 (GTC standard) | starting rating: 1510 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 5 | Simon, Julian (1504) | Won 2-0 | +181528 |
| 3standard | 156 | Gao, Zhen Xing (1814) | Won 2-1 | +231551 |
| 4standard | 59 | Ruggiu, Gianmaria (1460) | Lost 0-2 | -201531 |
| 5standard | 249 | Cervellione, Davide (1428) | Lost 0-2 | -201511 |
| 6standard | 257 | Zuddas, Enrico (1557) | Lost 1-2 | -171494 |
| top | average opponent: 1552record: 2-3 | new rating: 1494 | ||
| Grand Prix London 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 116 | Frezard, Julien (1660) | Lost 1-2 | -151485 |
| 3sealed | 711 | Fielding, Damian (1412) | Lost 0-2 | -191466 |
| 4sealed | 736 | Houttekier, Tommy (1482) | Lost 0-2 | -181448 |
| 5sealed | 823 | Sanguesa, Alejandro (1513) | Won 2-0 | +191467 |
| 6sealed | 704 | Fernandez, Gorka (1591) | Won 2-0 | +201487 |
| 7sealed | 446 | Gray, Robert (1487) | Lost 1-2 | -181469 |
| 8sealed | 454 | Horre, Tom (1466) | Won 2-1 | +181487 |
| 9sealed | 371 | Mueller, Andre (1740) | Won 2-1 | +231510 |
| top | average opponent: 1544record: 4-4 | new rating: 1510 | ||